Home / 126,022.23-189,066.15-47,142.61

Finding the Fourth Proportional to 126,022.23, 189,066.15 and 47,142.61

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Solution

The fourth proportional to 126,022.23, 189,066.15 and 47,142.61 is: 70,726.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,022.23 : 189,066.15 = 47,142.61 : x
  2. Step 2: Convert to fraction form
    126,022.23/189,066.15 = 47,142.61/x
  3. Step 3: Cross multiply
    126,022.23x = 189,066.15 × 47,142.61
  4. Step 4: Simplify right side
    126,022.23x = 8,913,071,300.99
  5. Step 5: Solve for x
    x = 8,913,071,300.99/126,022.23
  6. Step 6: Final answer
    x = 70,726.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.